Sub 70 011sq Mallet Putter: Specs, Fit and How to Choose (2026)

By Owen Palmer

Updated November 2026

The sub 70 011sq mallet putter is a mallet-style putter from the Sub 70 line, built around a square-shaped head that many golfers use for a stable, face-balanced feel. This guide explains how to judge whether that head shape fits your stroke, how to check setup and alignment, and what to look for before you buy. By the end, you should know whether this putter belongs in your bag.

What the 011sq Head Shape Means for Your Stroke

A square mallet head puts more mass away from the hosel, which helps the putter resist twisting on off-center strikes. That stability tends to suit golfers with a pendulum or arc-style stroke who want the face to stay square through impact. If your stroke is more of a straight-back, straight-through motion, you may find the head shape less forgiving of face rotation.

Shopping for one? See our guide: 6 Best Mallet V Blade Putters for Every Stroke (2026).

The head also gives you a larger visual target. Many golfers find that a bigger, squarer profile makes it easier to line up the putter face behind the ball, especially on shorter putts where alignment matters most.

How to Check Fit and Setup

Before you judge the head, confirm that the length, lie and loft suit your posture. A putter that is too long forces you to hunch, while one that is too short makes you stand upright and tends to pull the stroke off line.

Stand in your normal putting posture with the ball roughly under your eyes.
Let the putter hang naturally, with the sole resting flat on the ground.
Check that the shaft sits roughly at the level of your hands and that the toe does not lift off the turf.
Hit a series of 3-foot putts and note whether the ball starts on your intended line.
If the toe lifts or the heel digs in, adjust length or lie with a qualified club fitter.

Alignment and Stroke Checks

Alignment is where most mallet putters either help or hurt you. Pick a visible line on the top of the head, such as the center line or a sightline mark, and match it to a line on your ball. Practice with a training aid or a long alignment stick on the ground so you can see whether your eyes and the putter face agree.

Simple Drill for Start Line

Place two tees just outside the ball, creating a gate slightly wider than the putter head. Stroke 10 putts from 6 feet through the gate. If you hit the tees more than twice, your face is opening or closing during the stroke, and you should adjust your setup before blaming the head.

Common Mistakes

Choosing a head based on looks alone without checking length and lie.
Aligning to the wrong line on the putter, such as the outer edge instead of the sightline.
Using the putter only on the practice green, then judging it on fast course greens.
Swapping to a new head mid-round without giving your stroke time to adjust.
Ignoring grip size, which can change how the face rotates through impact.

Recommended Gear

Alignment sticks: A pair of long sticks lets you check start line on the practice green without changing your setup. View on Amazon
Putting mat with lines: A marked mat shows whether your face stays square over a repeatable stroke path. View on Amazon
Headcover for mallet putters: A fitted cover protects the sightline and face finish during transport. View on Amazon

FAQ

Is the sub 70 011sq mallet putter good for beginners?

Its larger, stable head can help newer putters keep the face square, but fit and alignment matter more than the head alone. Beginners should practice with alignment aids before deciding.

How do I know if this head shape suits my stroke?

Run the gate drill and a series of 3-foot putts. If the ball starts on your intended line consistently, the head is working with your stroke.

Should I get a club fitter to check this putter?

A professional fitter can measure length, lie and loft against your posture, which is worth doing if you putt regularly or notice persistent misses.

Conclusion

The sub 70 011sq mallet putter suits golfers who want a stable, square head and a clear alignment target. Confirm length and lie, check start line with simple drills, and test it on real greens before committing. A few focused sessions will tell you quickly whether this head belongs in your bag.

Ready to choose one?

About Owen Palmer

Owen Palmer is part of our editorial team and reviews and edits our putting & short game guides, checking product details against manufacturer specifications and owner feedback.

About the author

Owen Palmer

Owen Palmer writes reviews and buying guides for Putting For Par.